1 # -*- coding: utf-8 -*-
3 # Copyright 2018 Whitestack, LLC
4 # *************************************************************
6 # This file is part of OSM Monitoring module
7 # All Rights Reserved to Whitestack, LLC
9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
10 # not use this file except in compliance with the License. You may obtain
11 # a copy of the License at
13 # http://www.apache.org/licenses/LICENSE-2.0
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
18 # License for the specific language governing permissions and limitations
20 # For those usages not covered by the Apache License, Version 2.0 please
21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
25 import multiprocessing
28 from osm_mon
.core
.config
import Config
29 from osm_mon
.core
.message_bus_client
import MessageBusClient
30 from osm_mon
.core
.models
import Alarm
31 from osm_mon
.core
.response
import ResponseBuilder
32 from osm_mon
.evaluator
.service
import EvaluatorService
, AlarmStatus
34 log
= logging
.getLogger(__name__
)
38 def __init__(self
, config
: Config
, loop
=None):
41 loop
= asyncio
.get_event_loop()
43 self
.service
= EvaluatorService(config
)
44 self
.msg_bus
= MessageBusClient(config
)
46 def evaluate_forever(self
):
47 log
.debug("evaluate_forever")
51 time
.sleep(int(self
.conf
.get("evaluator", "interval")))
53 log
.exception("Error evaluating alarms")
57 log
.info("Starting alarm evaluation")
58 alarms_tuples
= self
.service
.evaluate_alarms()
60 for alarm
, status
in alarms_tuples
:
61 p
= multiprocessing
.Process(target
=self
.notify_alarm
, args
=(alarm
, status
))
64 for process
in processes
:
65 process
.join(timeout
=10)
66 log
.info("Alarm evaluation is complete")
68 def notify_alarm(self
, alarm
: Alarm
, status
: AlarmStatus
):
69 log
.debug("_notify_alarm")
70 resp_message
= self
._build
_alarm
_response
(alarm
, status
)
71 log
.info("Sent alarm notification: %s", resp_message
)
72 self
.loop
.run_until_complete(
73 self
.msg_bus
.aiowrite("alarm_response", "notify_alarm", resp_message
)
75 evaluator_service
= EvaluatorService(self
.conf
)
76 evaluator_service
.update_alarm_status(status
.value
, alarm
.uuid
)
79 def _build_alarm_response(self
, alarm
: Alarm
, status
: AlarmStatus
):
80 log
.debug("_build_alarm_response")
81 response
= ResponseBuilder()
83 for name
, value
in alarm
.tags
.items():
85 now
= time
.strftime("%d-%m-%Y") + " " + time
.strftime("%X")
86 return response
.generate_response(
89 metric_name
=alarm
.metric
,
90 operation
=alarm
.operation
,
91 threshold_value
=alarm
.threshold
,